Machine for gumming envelopes, paper bags, and the like



- T. HUGO May 25 1926.

MACHINE FOR GUMMING ENVELOPES PAPER BAGS AND THE LIKE s Sheets-Shed 1 Filed Feb, 23 1924 "Ma 25, T926; 1,586,366

T. HUGO MACHINE FOR GUMMING ENVELOPES, PAPER BAGS, AND THE LIKE Filed Feb. 23 1924 3 Sheets-Sheet 2 T. HUGO MACHINE FOR GUMMING ENVELOPES, PAPER BAGS, AND THE LIKE Filed Feb. 23 192 3 Sheets-Sheet 3 Patented May 25, 19 26. V

* UNITED STATES 1,586,366 PATENT OFFICE.

THEODOR HU'GO, OF WILMERSDORF, NEAR BERLIN, GERMANY.

MACHINE FOR GUMMING ENVELOPES, PAPER BAGS, AND'THE LIKE.

Application filed February 23, 1924, Serial No. 694,723, and in Germany November 20, 1 922.

The invention relates to an improvement n machines for gummmg envelopes, paper, bags,,.and the like.

In known machines of this kind employing a gumming-stamp which is connected with a sliding member adapted to travel with a reciprocating motion along horizontal guides, between a gum-feed roller and the paper to be treated, it is necessary to provide means for lowering and raising the gumming-stamp at the end of its travel. It has hitherto been the practice to connect the gumming stamp rigidly with the sliding member, so that considerable power was required to raise the stamp owing to the weight of the relatively heavy sliding member which must also be raised at the same time. This considerably decreases theeffective speed at which the machine can be Worked conveniently .without submitting the component parts to undue shocks and responding movement of the sliding me1n ber. The force necessaryto raise the gumming-stamp is thereby considerably decreased, and themachine can be worked at a greatly increased speed compared with known machines of this kind.

The invention is illustratedin the accompanying drawings, in which Fig. 1 isaa side elevation partly-in sec-. tion. I

Fig. 2 is a front elevation partly in section, and

Fig. 3 is a. plan, of the machine.

a is the horizontally reciprocating sliding member, carrying the gumming-stamp b and actuated by the connecting rods 0 and the crank arms a, which are secured at their lower ends to a rock shaft 0 carried'onthe base plate i and provided at one end with a toothed sector 0 by which it is geared through the gear train a to the spindle or shaft d of the gum-feed cylinder 01. The

sliding member a having side sleeves awhich are niounted and slidably movable on guide rods f carried by suppqrting rails g end of a lifter bar or guide rail m and whereby the said bar or rail may be vertically oscillated within certain limits to vary the angle thereof on its pivot or hinge connection. To the end of the lifter bar or rail m opposite that pivoted or hinged to the plate 76 an actuating lever 0 is pivotally con-' nected and has at the outer end thereof suitable operating means 0, which may be connected to any device adapted to vertically reciprocate the same and in turn raise and lower the outer end of the lever 0. The lever 0 is intermediately fulcrumed at n on a fulcrum upright it supported adjacent to and by the terminal of one of the supporting rails g, and by this means the lifter bar or guide rail m may be also elevated and depressed at its free extremity to effect the operation desired. The lifter bar or guide rail m has the inner end of the lever 0 connected thereto by a link 1', which is movably attached to the free end of the lifter bar or rail m.

Thegumming stamp b, which may be of any approved form, has oppositely disposed uprlg ts secured thereto and slidably movable through vertical sleeves 9 held by the adjacent extremity of the sliding mem- -ber a. The upper ends-of the uprights or vertically reciprocating'rods g are connected by a cross piece t to the intermediate ortion of which is secured a depending racket t having a stub shaft or spindle 1) extending transversely from the lower end thereof and provided with an anti-frictional roller 1), which is held in engagement with the upper surface of the lifter baror guide rail m. The roller 72 is free to travel over the lifter bar or guide rail m, and the upri hts or vertically reciprocating rods 9 are ree to move in the sleeves g which are secured to the sliding member a as heretofore specified, Two retra'ctile or retention springs u are secured to the o posite ends of the cross piece at and to the base plate 2',

the said springs serving as cushioning means for the gumming stamp or pad 6, and the elevation of the said stamp or pad through the operation of the lifter bar or rail m will be against the tension of the said springs,

and when the lifter bar or rail is'lowered, the springs will assist in the lowering operation and depression of the stamp. In addi tion, the springs u give to the gum stamp or pad 6 the necessary yielding action relatively to the paper bags or envelopes or other articles 8 disposed under the stamp to receive the gum or adhesive material and illustrated in position in Fig. 1. The machine also includes a gum-holding receptacle or trough e in which is mounted the sup ply or feeding roller d. The shaft 0 is adapted to bedriven by any suitable mechanism and the attachment as a whole may be placed in convenient adjacency or association with other'mechanism from which the envelopes, bags or other similar articles may be supplied.

' stamp By a suitable movement of the lever 0 the guide rail m can be raised, thereby raising the roller 12 and consequently the gumming-stamp 6 without any corresponding. displacement of the sliding member a. Two tension springs a, arranged on each side of the machlne and secured at their lower ends to the base plate 2' and at theirupper ends to the cross piece t, serve to depress the stamp b when the guide rail m is lowered, and also to provide the pressure necessary -ment with the gum roller or 5 cylinder (2 by the actuation of the sliding member a through the medium of the connecting rods a, crank .arms 0 and rock shaft 0', the gumming stamp or pad I) being held elevated until it passes rearwardly over the roller or cylinder d and again returns to its forward operating osition, when the said stamp or pad is again lowered to engage the parts of the envelope, bags or the like to which it ap lies the gum or adhesive material.

claim:

. 1. In a,.device of the class specified, the combination with an adhesive substance supply means having a feed cylinder opera tively mounted therein of a longitudinally movable slide having side sleeves, side uides on-which the said sleeves have free siding movement, a rock shaft provided with cranks and arms connected to the slide, a liquidtransmitting stamping device held by and movable with the horizontally reciprocating slide and also movable vertically without atfecting the longitudinal movement of the slide, and means having a vertically movable hinge device for vertically reciprocating the said liquid-transmitting stamping device, the liquid-transmitting stamping device by the means specified being first moved 7 a short distance vertically to evenly spread the li uid on the device to which the said liquid as been applied.

2. In a gunnning attachment for envelopes v and the like the combination with a liquid gum holding receptacle, having a rotatable feed cylinder therein, a frame provided with guides, a slide having opposite side portions thereof engaging the guides and reciprocaable horizontally along the said guides, a ll rock shaft with arms and crank devices connected to and operating the said slide, a gum-transmitting stamping device held by and movable horizontally with the slide,

means for effecting a vertical reciprocation of the said stampin device while the latter is moving with the s ide, a guide rail hinged at one end and engaging a portion of the means for effecting a vertical reciprocation of the stamping device, and mechanism for operating the latter means and raising and lowering the said guide rail.

3. In a umming attachment for envelopes and the 11 e, the combination with a liquid gum holding receptacle having a rotatable 106 feed cylinder therein, a frame provided with I guides, a slide having opposite side portions thereof engaging t e guides. and reciprocable horizontally along the said guides,

a rock shaft with arms and crank devices connected to and operating the said slide,

a gum-transmitting stamping device held by and movable horizontally with the slide,- means for effecting a vertical reciprocation 'of the said stamping device while the lat- 110 ter is moving with the slide, a guide rail hinged at one end and engaging a portion of the means for effecting a vertical reciprocation of the stamping device, the means for effecting a vertical reciprocation of the 1 stamping device including a roller movableon the guide rai:l, and mechanism for operating the means for effecting a vertical reciprocation of the stamping device and raising and lowering the said guide rail.

4. In an attachment of the class specified, the combination with a trough for holding adhesive material and having a feed or supply roller disposed therein, of a horizontally disposed reciprocating slidemember carry- 125 ing upright devices, a stamping device movable over and in contact with the said roller and having means for engagin the said upright devices to effect a vertlcal reciprocation of the stamping device without afno fecting the lon itudinal sliding movement zontal position, and mechanism for operatof the slide merrier, a rail hinged at one end ing the said means for effecting a vertical for engaging a portion of the said means reciprocation of the said stamping device. 10 of the stamping device to raise and lower In testimony whereof I have afiixed my 5 the letter at proper intervals without modisignature.

fying the reciprocation of the sliding inemher or disengaging the same from itshori- THEODOR HUGO. 

